Fabrication of a CPA salt pill with circulating solution method

1
Fabrication of a CPA salt pill with circulating
solution method
Akio Hoshino1, Kazuyo Tokoi1,Yoshitaka Ishisaki1,
Keisuke Shinozaki2, Dan McCammon3
N06
1 Tokyo Metropolitan University (TMU), 2
ISAS/JAXA, 3 University of Wisconsin- Madison
(UW)
Purpose

• Reliable low cost ADR for low temperature
  experiments
• Fast crystallization and easy handling for the
  salt pill

Salt pill housing
Circulating solution system
Specification of Salt pill
2
Cooling test
N06

• Cooling power 47mJ
• - Heat loss for copper 3.8mJ
• - Heat loss for SUS304 31.6 mJ
• Total heat load 0.14 mJ
• 11.5 mJ

Temperature curve of thermometer on the pill
(red top, black bottom)
Balance sheet of heat of the pill
Disagreement in the balance sheet suggests
over-estimation of the cooling power because of
uniformity of magnetic field and dehydration of
CPA crystal.