CMA BT70i User guide

Brand: CMA

Model: BT70i

Type: User guide

RADIATION'SENSOR&!

BT70I!

USER’S!GUIDE!

CENTRE FOR MICROCOMPUTER APPLICATIONS

http://www.cma-science.nl

"!|!#$%&'!()*')+',-!./-0,1!20/130!45'*/!!

Short!description!

$6/!()*')+',-!0/-0,1!#$%&'!0/-0/0!)786)9!:/+)!)-*!;)<<)!1)*')+',-=!!

>786)9! :/+)9! ;)<<)! 1)?0! ',-'@/! <)+/1')7! +6/?! 0+1'A/! ,1! 8)00! +61,5;6=! $6/! )<,5-+! ,B!

1)*')+',-! '0! ;/-/1)77?! */+/1< ' -/* ! :?! </)051'-;! +6/! 1/057+'-;! ',-'@)+',-=! $6/! ()*')+',-!

0/-0,1! 50/0! )! 4/';/1CDE77/1! +5:/! +,! */+/F+! +6'0! 1)*')+',-=! $6/! 4D! +5:/! F,-0'0+0! ,B! )-!

)-,*/! G8,0'+'H/! /7/F+1,*/I! 8,0'+',-/*! '-! +6/! F/-+/1! ,B! )! +5:57)1! F)+6,*/! G- /;)+'H/!

/7/F+1,*/I!B'77/*!J'+6!)!<'K+5 1/!,B!)1;,-9!-/,-9!)-*!6)7,;/-=!$6/!F)+6,*/!'0!)!+6'-CJ)77/*!

</+)77'F!F?7'-*/1!0/)7/*!)+!/)F6!/-*!J'+6!)-!'-057)+'-;!*'0A!+,!F,-+)'-!+6/!;)0=! $6/!)-,*/!'0!

)!J'1/!+6)+!/K+/-*0!'-+,!+6/!F?7'-*/1=!>!6';6!H,7+);/!'0!)887'/*!+,!+6/!/7/F+1,*/0!+,!F1/)+/!

)-! /7/F+1'F)7! B'/7*! J'+6'-! +6/! F6)<:/1=! L6/-! 1)*')+',-! 8)00/0! +61,5;6! +6/! F6)<:/1! )-*!

',-'@/0!+6/!;)09!'+!;/-/1)+/0!)! 857 0/! ,B! F511/-+= ! $6/! 0/-0 ,1! /7/F+1, -' F )7 7?! 81,F /0 0/0 ! +6/0/!

8570/0!+,! *'087)?! +6/!1)*')+',-!7/H/7! '-!F,5-+0!8/1! <'-5+/=! >!F7'FA'-;!0,5-*! '0! /<'++/*!B,1!

/)F6!1)*')+',-!/H/-+!*/+/F+/*!GB,1!/)F6!F,5-+I=!!

$6/!/-*!,B!+6/!4D!+5:/!6)0!)!+6'-!<'F)!J'-*,J=!M+!)77,J0!)786)!8) 1+'F 7/0 !+,!1/) F6 !+6/!4 D !

+5:/! )-*! :/! */+/F+/*=! $6/! <'F)! J'-*,J! J'77! )70,! 0/-0/! 7,J! /-/1;?! :/+)! 8)1+'F7/0! )-*!

;)<<)! 1)*')+',-! +6)+! F)- -, +! 8/-/+1)+/! +6/! 87)0+'F! F)0/! ,1! +6/! 0'*/! ,B! +6/! +5:/=!!

N,1!+6/!06,1+!)<,5-+!,B!+'</!+6/!4D !+5:/!'0!*/+/F+'-;!,-/!8)1+'F7/9!'B!)-,+6/1!1)* ',) F+'H/!

8)1+'F7/!/-+/10!+6/!+5:/!'+!J'77!-,+!:/!*/+/F+/*=!$6'0!'0! F)77/*!*/)*! +'</=!$6/!<)K'<5<!*/)*!

+'</!B,1!+6/!4D!+5:/!'0!O&!<'F1,0/F,-*0!G,1!O&!P0I=!!

$,! */+/F+! 1)*')+',-! 8,'-+! +6/! 0/-0,1! +,J)1*! +6/! 0,51F/! ,B! 1)*')+',-=! $,! */+/F+! >786)!

1)*')+',-!85+!+6/!0/-0,1!F7,0/!+, !+6/!0,51F/09!+6'0!'0!:/F)50/!>786)!8)1+'F7/0!*,!-,+!+1)H/7!

B)1!+61,5;6!)'1=!!

$6/! ()*')+',-! 0/-0,1! F)-! :/! *'1/F+7?! F,-- /F+/*! +,! +6/! )-)7,;! #$! '-85+0! ,B! +6/! QD>!

'-+/1B)F/0=!!

Sensor!recognition!

$6/! ()*')+',-! 0/-0,1! #$%&'! 6)0! )! </<,1?! F6'8! GRRS(TDI! J'+6! '-B,1<)+',-! ):,5+! +6/!

0/-0,1U!'+0!-)</9!</)051/*! V5)-+'+?9!5-'+!)-*! F)7':1)+',-=!$ 61,5 ;6! )!0'<87/!81,+,F,7!+6'0!

'-B,1<)+',-!'0!1/)*!:?!+6/!QD>!'-+/1B)F/0!)-*! +6/!0/-0,1!'0!)5+,<)+'F)77?!1/F,;-'@/*!J6/-!

'+!'0!F, --/F+/*!+,!+6/0/!'-+/1B)F/0=!MB!?,51!()*')+',-!0/-0,1!'0!-,+!)5+,<)+'F)77?!*/+/F+/*!:?!

)-!'-+/1B)F/!?,5!6)H/!+,!<)-5)77?!0/+!58!?,51!0/-0,1!:?!0/7/F+'-;!'+!B1,<!+6 /!Q,)F6!./-0,1!

W':1)1?=!!

Calibration!!

$6/! QD>! ()*')+',-! 0/-0,1! #$%&'! '0! F)7':1)+/*! )0! F,5-+/19! +6/! 8570/0! ;/-/1)+/*! :?! +6/!

0/-0,1!)1/!F,5-+/*=!!

$6/! Q,)F6! 0,B+J)1/! )77,J0! 0/7/F+'-;! +6/! F)7':1)+',-! 0588 7'/*! :?! +6/! 0/-0,1! </<,1?!

GRRS(TDI!,1!+6/!F)7':1)+',-!0+,1/*!'-!+6/!Q,)F6!./-0,1!W':1)1?=!!

#$%&'!()*')+',-!./-0,1!20/130!45'*/! |!X!

Suggested!experiments!!

• D,-'+,1'-;!:)FA;1,5-*!1)*')+',-!!

MB!+6/!1)*')+',-!0/-0,1!'0!0/+!58!B)1!)J ) ?!B1,< !) -?!1) * ', )F +' H/!0, 51F /9!'+!0+'77!*/+/F+0!

8570/0!,FF)0',-)77?=!$6'0!'0!*5/!+,!+6/!:)FA;1,5-*!1)*')+',-!+6)+!'0!)!1/057+!,B!1)*')+',-!

+6)+!,FF510!-)+51)77?!B1,<!F,0<'F!1)*')+',-9!;/,86?0'F) 7!1)* ')+', -9!'-6 /1/-+!<)+/1') 7!

1)*')+',-9!/+F=!Y,1<)7!:)FA;1,5-*!1)*')+',-!7/H/70!H)1?!)+!*'BB/1/-+!7,F)+',-09!)FF,1*'-;!

+,!)7+'+5*/!)-*!,+6/1!B)F+,109!05F6!)0!+?8/0!,B!<'-/1)70!'-!+6 /!;1,5 -* =!$6/!7/H/7!,B!

:)FA;1,5-*!1)*')+',-!'0!505)77?!H/1?!7,J=!.'-F/!+6/!:)FA;1,5-*!1)*')+',-!'0!81/0/-+!'-!

)77!/K8/1'</-+09!'+!06,57*!:/!</)051/*!)-*!05:+1)F+/*!B1,<!+6/!/K8/1'</-+)7!1/)*'-;0!

B,1!+6/0/!+,!:/!1/7'):7/=!!

• D,-'+,1'-;!1)*')+',-!,B!F,<<,-!1)*',)F+'H/!<)+/1')70!

! Z/1/!+6/!-)+51)7!0,51F/!,B!1)*')+',-!05F6!)0!8,+)00'5<!0)7+0!,1!7)-+/1-!<)-+/70!F)-!:/!

50/*=!!M-!05F6!/K8/1'</-+!+6/!1)-*,<!-)+51/!,B!+6/!1)*')+',-!F)-!:/!81/0/-+/*=!

• ()*',)F+'H/!*/F)?!)-*!6)7BC7'B/!*/+/1<'-)+',-!

! $6/!1)*')+',-! 0/-0,1!;'H/0!+6/! 8,00':'7'+?!+,! </)051/!1)*',)F+'H/!*/F)?! 1)+/!)-*!6)7BC

7'B/! +'</=! M-! 05F6! /K8/1'</-+0! '0,+,8/! ;/-/1)+,109! S1,+)F+'-'5<! ;/-/1)+,1! G6)7BC7'B/!

+'</! ,B! %"! 0/F,-*0I! , 1! #)[X%<! ;/-/1)+,1! G6)7BC7'B/! +'</! ,B! [\X! 0/F,-*0I! )1/! '*/)7!

1)*',)F+'H/!<)+/1')70!B,1!+6'0!/K8 /1' < /-+= !!!

• ()*')+',-!7/H/7!H/1050!06'/7*'-;!!

! M-! +6'0! /K8/1'</-+! +6/! 1)*')+',-! 7/H/7! '0! 1/F,1*/*! J6/-! )-! ):0,1:/1! ,B! *'BB/1/-+!

+6'FA-/00! '0! 87)F/*! :/+J//-! +6/! 0/-0,1! )-*! 1)*')+',-! 0,51F/=! >0! ) :0, 1:/1! )75<'-5<!

06//+G0I!B,1!:/+)!1)*')+',-!,1!)!7/)*!06//+G0I!B,1!;)<<)!1)*')+',-!F)- !:/!50/*=!M-!+6'0!

/K8/1'</-+! ?,5!F)-! )70,! F,<8)1/! +6/! /BB/F+! ,B! *'BB/1/-+! +?8/0! ,B! <)+/1')70! +,! 06'/7*!

)786)9!:/+)!,1!;)<<)!1)*')+',-=!

• D,-'+,1!1)*')+',-!B1,<!)-!1)*')+',-!0,51F/!)0!)!B5-F+',-!,B!+6/!*'0+)-F/!:/+J //- !+6/!

0,51F/!)-*!+6/!1)*')+',-!0/-0,1!!

M-!+6'0!/K8/1'</-+!+6/!1)*')+',-!7/H/7 !' 0 !1/F , 1*/* !J6 /- !)!0 /-0 ,1!' 0 !87 )F /* !)+!* 'BB/1/- +!

*'0+)-F/0!B1,<!+6/!1)*')+',-!0,51F/=!!

]!|!#$%&'!()*')+',-!./-0,1!20/130!45'*/!!

Technical!Specifications!

!"#$%&%'"(&)((

>786)9!:/+)9!;)<<)!1)*')+',-!

*+#,"(

&!==![&&&!F80!GF,5-+0!8/1!0/F,-*I!

-./$"(0"%,0&!

\!^!

-./$"(/"#,&0!

&="_!<0!

1+22+($"#$%&%'%&3!

[`!F80!a!G<(a61I!GB,1!Q0

[X%

4%#%2.2("#"5,3(6,+22+7!

_!A/^!GB,1!Q0

[X%

8"+9(&%2"!

RBB/F+'H/!*/)*!+'</!/V5)7!+,!8570/!7/-;+6!

G4D!+5:/!*/)*!+'</!b!0/-0,1!8570/!7/-;+6I!

GM tube operating voltage

450 .. 650 V, fixed to about 500 V

Gas filling

Neon – halogen quenched

Cathode material

Fe – Cr (446 stainless steel)

Cathode wall thickness

0.25 mm

Mica window active diameter

9 mm

Mica window density

1.5 .. 2.0 mg/cm

GM tube active length

39 mm

Dimensions

138 x 58 x 33 mm

Operating temperature

0 .. 50 °C

:)##";&%)#!

./-0,1!F):7/!)++)F6/*!+,!+6/!0/-0,1=!!

Warranty:!!

$6/! ()*')+',-! 0/-0,1! #$%&'! '0! J )11)-+/*! +,! :/! B1//! B1,<! */B/F+0! '-! <)+/1')70! )- *!

J,1A<)-06'8! B,1! )! 8/1',*! ,B! "]! <,-+60! B1,<! +6/! *)+/! ,B! 851F6)0/! 81,H'*/*! +6)+! '+! 6)0!

://-!50/*!5-*/1!-,1<)7!7):,1)+,1?!F,-*'+',-0=!$6'0!J)11)-+?!*,/0!-,+!)887?!'B!+6/!0/-0,1!

6)0!://-!*)<);/*!:?!)FF'*/-+!,1!<'050/=!!

Note:! <0%$( =5)9.;&( %$( &)( >"( .$"9( ?)5( "9.;+&%)#+/( =.5=)$"$( )#/3@( A&( %$( #)&( +==5)=5%+&"( ?)5(

%#9.$&5%+/B(2"9%;+/B(5"$"+5;0B()5(;)22"5;%+/(+==/%;+&%)#$@(( ( ( ( (

Rev. 20/12/2015

CMA BT70i User guide

CMA BT70i User guide

Related papers

Other documents